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nrocco
Error with EHz-P: What does this mean? Any ideas?
smeterd read-meter -vvv --serial-port /dev/ttyUSB0 --baudrate 9600 --serial-baudrate 9600 --serial-bytesize 8 --serial-parity N --serial-stopbits 1
[2020-01-04 11:27:59,029] DEBUG Open serial connect to /dev/ttyUSB0 with: parity=N, baudrate=9600, bytesize=8, xonxoff=False, timeout=10, stopbits=1.0
[2020-01-04 11:27:59,035] INFO New serial connection opened to /dev/ttyUSB0
[2020-01-04 11:27:59,037] INFO Start reading lines
[2020-01-04 11:27:59,103] ERROR 'ascii' codec can't decode byte 0xb7 in position 1: ordinal not in range(128)
[2020-01-04 11:27:59,104] ERROR Read a total of 0 lines
[2020-01-04 11:27:59,105] INFO Closing connection to /dev/ttyUSB0.
Traceback (most recent call last):
File "/usr/local/bin/smeterd", line 9, in
Hi @apassler
Thanks for sharing your findings here.
In order to better understand this issue and to add support for EHz-P to smeterd I need more information.
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Does it work with other libraries or scripts you found on the internet?
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Are you sure all the connection settings are correct for this model (documentation?)
Thank you for your quick respond! I didn't realy expect this so quickly.
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I also tested vzlogger with no success.
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I read the documentation on https://www.emh-metering.de/produkte/smart-meter/ehz I also tested this script:
#!/usr/bin/python import sys import serial import time
port = serial.Serial( port='/dev/ttyUSB0', baudrate=9600, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, bytesize=serial.EIGHTBITS )
data = ''
start = '1b1b1b1b01010101' for i in range (0, 1000): char = port.read() data = data + char.encode('HEX') pos = data.find(start) if (pos <> -1): data = data[pos:len(data)]
file = open('sample01', 'w') file.write(data) file.close()
results in sample01:
Hi together,
I have the same issue.
smeterd read-meter -vvv --serial-port /dev/ttyUSB0 --baudrate 9600 --serial-baudrate 9600 --serial-bytesize 8 --serial-parity N --serial-stopbits 1
[2020-02-20 21:37:59,112] DEBUG Open serial connect to /dev/ttyUSB0 with: baudrate=9600, bytesize=8, parity=N, stopbits=1.0, xonxoff=False, timeout=10
[2020-02-20 21:37:59,118] INFO New serial connection opened to /dev/ttyUSB0
[2020-02-20 21:37:59,118] INFO Start reading lines
[2020-02-20 21:37:59,161] ERROR 'ascii' codec can't decode byte 0xe1 in position 5: ordinal not in range(128)
[2020-02-20 21:37:59,161] ERROR Read a total of 0 lines
[2020-02-20 21:37:59,162] INFO Closing connection to /dev/ttyUSB0.
If I use the Emlog testing software I got a byte string and the information about the baudrate is 9600 8N1.
The datalogger runs in my home automation smartVISU under the following plugin.
[https://github.com/smarthomeNG/plugins/tree/master/smlx]
Maybe it helps for analysis.
Many thanks.
I'm also seeing 'ascii' codec can't decode byte 0xc0 in position 0: ordinal not in range(128). From what I'm reading this may indicate the code is made for Python2 and has trouble running on python 3.
//Update: that's not it. I got it working. I was using a virtual serial port to test it. When I switched to an Arduino that emulates a P1 meter, it worked.
No, I mean I got it working in an addon for the Mozilla WebThings Gateway, which uses your python module.
